2 * mke2fs.c - Make a ext2fs filesystem.
4 * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
5 * 2003, 2004, 2005 by Theodore Ts'o.
8 * This file may be redistributed under the terms of the GNU Public
13 /* Usage: mke2fs [options] device
15 * The device may be a block device or a image of one, but this isn't
16 * enforced (but it's not much fun on a character device :-).
19 #define _XOPEN_SOURCE 600 /* for inclusion of PATH_MAX in Solaris */
28 #include <sys/utsname.h>
48 #include <sys/ioctl.h>
49 #include <sys/types.h>
53 #include <blkid/blkid.h>
55 #include "ext2fs/ext2_fs.h"
56 #include "et/com_err.h"
57 #include "uuid/uuid.h"
59 #include "ext2fs/ext2fs.h"
63 #include "../version.h"
64 #include "nls-enable.h"
66 #define STRIDE_LENGTH 8
72 extern int isatty(int);
73 extern FILE *fpopen(const char *cmd
, const char *mode
);
75 const char * program_name
= "mke2fs";
76 const char * device_name
/* = NULL */;
78 /* Command line options */
83 int discard
= 1; /* attempt to discard device before fs creation */
89 char *bad_blocks_filename
;
92 struct ext2_super_block fs_param
;
98 int sync_kludge
; /* Set using the MKE2FS_SYNC env. option */
103 int sys_page_size
= 4096;
104 int linux_version_code
= 0;
106 static void usage(void)
108 fprintf(stderr
, _("Usage: %s [-c|-l filename] [-b block-size] "
109 "[-f fragment-size]\n\t[-i bytes-per-inode] [-I inode-size] "
110 "[-J journal-options]\n"
111 "\t[-G meta group size] [-N number-of-inodes]\n"
112 "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
113 "\t[-g blocks-per-group] [-L volume-label] "
114 "[-M last-mounted-directory]\n\t[-O feature[,...]] "
115 "[-r fs-revision] [-E extended-option[,...]]\n"
116 "\t[-T fs-type] [-U UUID] [-jnqvFKSV] device [blocks-count]\n"),
121 static int int_log2(int arg
)
133 static int int_log10(unsigned int arg
)
142 static int parse_version_number(const char *s
)
144 int major
, minor
, rev
;
150 major
= strtol(cp
, &endptr
, 10);
151 if (cp
== endptr
|| *endptr
!= '.')
154 minor
= strtol(cp
, &endptr
, 10);
155 if (cp
== endptr
|| *endptr
!= '.')
158 rev
= strtol(cp
, &endptr
, 10);
161 return ((((major
* 256) + minor
) * 256) + rev
);
165 * Helper function for read_bb_file and test_disk
167 static void invalid_block(ext2_filsys fs
EXT2FS_ATTR((unused
)), blk_t blk
)
169 fprintf(stderr
, _("Bad block %u out of range; ignored.\n"), blk
);
174 * Reads the bad blocks list from a file
176 static void read_bb_file(ext2_filsys fs
, badblocks_list
*bb_list
,
177 const char *bad_blocks_file
)
182 f
= fopen(bad_blocks_file
, "r");
184 com_err("read_bad_blocks_file", errno
,
185 _("while trying to open %s"), bad_blocks_file
);
188 retval
= ext2fs_read_bb_FILE(fs
, f
, bb_list
, invalid_block
);
191 com_err("ext2fs_read_bb_FILE", retval
,
192 _("while reading in list of bad blocks from file"));
198 * Runs the badblocks program to test the disk
200 static void test_disk(ext2_filsys fs
, badblocks_list
*bb_list
)
206 sprintf(buf
, "badblocks -b %d -X %s%s%s %u", fs
->blocksize
,
207 quiet
? "" : "-s ", (cflag
> 1) ? "-w " : "",
208 fs
->device_name
, fs
->super
->s_blocks_count
-1);
210 printf(_("Running command: %s\n"), buf
);
213 com_err("popen", errno
,
214 _("while trying to run '%s'"), buf
);
217 retval
= ext2fs_read_bb_FILE(fs
, f
, bb_list
, invalid_block
);
220 com_err("ext2fs_read_bb_FILE", retval
,
221 _("while processing list of bad blocks from program"));
226 static void handle_bad_blocks(ext2_filsys fs
, badblocks_list bb_list
)
230 unsigned must_be_good
;
232 badblocks_iterate bb_iter
;
242 * The primary superblock and group descriptors *must* be
243 * good; if not, abort.
245 must_be_good
= fs
->super
->s_first_data_block
+ 1 + fs
->desc_blocks
;
246 for (i
= fs
->super
->s_first_data_block
; i
<= must_be_good
; i
++) {
247 if (ext2fs_badblocks_list_test(bb_list
, i
)) {
248 fprintf(stderr
, _("Block %d in primary "
249 "superblock/group descriptor area bad.\n"), i
);
250 fprintf(stderr
, _("Blocks %u through %u must be good "
251 "in order to build a filesystem.\n"),
252 fs
->super
->s_first_data_block
, must_be_good
);
253 fputs(_("Aborting....\n"), stderr
);
259 * See if any of the bad blocks are showing up in the backup
260 * superblocks and/or group descriptors. If so, issue a
261 * warning and adjust the block counts appropriately.
263 group_block
= fs
->super
->s_first_data_block
+
264 fs
->super
->s_blocks_per_group
;
266 for (i
= 1; i
< fs
->group_desc_count
; i
++) {
268 for (j
=0; j
< fs
->desc_blocks
+1; j
++) {
269 if (ext2fs_badblocks_list_test(bb_list
,
273 _("Warning: the backup superblock/group descriptors at block %u contain\n"
277 group
= ext2fs_group_of_blk(fs
, group_block
+j
);
278 fs
->group_desc
[group
].bg_free_blocks_count
++;
279 ext2fs_group_desc_csum_set(fs
, group
);
280 fs
->super
->s_free_blocks_count
++;
283 group_block
+= fs
->super
->s_blocks_per_group
;
287 * Mark all the bad blocks as used...
289 retval
= ext2fs_badblocks_list_iterate_begin(bb_list
, &bb_iter
);
291 com_err("ext2fs_badblocks_list_iterate_begin", retval
,
292 _("while marking bad blocks as used"));
295 while (ext2fs_badblocks_list_iterate(bb_iter
, &blk
))
296 ext2fs_mark_block_bitmap(fs
->block_map
, blk
);
297 ext2fs_badblocks_list_iterate_end(bb_iter
);
301 * These functions implement a generalized progress meter.
303 struct progress_struct
{
310 static void progress_init(struct progress_struct
*progress
,
311 const char *label
,__u32 max
)
315 memset(progress
, 0, sizeof(struct progress_struct
));
320 * Figure out how many digits we need
323 sprintf(progress
->format
, "%%%dd/%%%dld", i
, i
);
324 memset(progress
->backup
, '\b', sizeof(progress
->backup
)-1);
325 progress
->backup
[sizeof(progress
->backup
)-1] = 0;
326 if ((2*i
)+1 < (int) sizeof(progress
->backup
))
327 progress
->backup
[(2*i
)+1] = 0;
330 progress
->skip_progress
= 0;
331 if (getenv("MKE2FS_SKIP_PROGRESS"))
332 progress
->skip_progress
++;
334 fputs(label
, stdout
);
338 static void progress_update(struct progress_struct
*progress
, __u32 val
)
340 if ((progress
->format
[0] == 0) || progress
->skip_progress
)
342 printf(progress
->format
, val
, progress
->max
);
343 fputs(progress
->backup
, stdout
);
346 static void progress_close(struct progress_struct
*progress
)
348 if (progress
->format
[0] == 0)
350 fputs(_("done \n"), stdout
);
353 static void write_inode_tables(ext2_filsys fs
, int lazy_flag
, int itable_zeroed
)
359 struct progress_struct progress
;
362 memset(&progress
, 0, sizeof(progress
));
364 progress_init(&progress
, _("Writing inode tables: "),
365 fs
->group_desc_count
);
367 for (i
= 0; i
< fs
->group_desc_count
; i
++) {
368 progress_update(&progress
, i
);
370 blk
= fs
->group_desc
[i
].bg_inode_table
;
371 num
= fs
->inode_blocks_per_group
;
374 ipb
= fs
->blocksize
/ EXT2_INODE_SIZE(fs
->super
);
375 num
= ((((fs
->super
->s_inodes_per_group
-
376 fs
->group_desc
[i
].bg_itable_unused
) *
377 EXT2_INODE_SIZE(fs
->super
)) +
378 EXT2_BLOCK_SIZE(fs
->super
) - 1) /
379 EXT2_BLOCK_SIZE(fs
->super
));
381 if (!lazy_flag
|| itable_zeroed
) {
382 /* The kernel doesn't need to zero the itable blocks */
383 fs
->group_desc
[i
].bg_flags
|= EXT2_BG_INODE_ZEROED
;
384 ext2fs_group_desc_csum_set(fs
, i
);
386 retval
= ext2fs_zero_blocks(fs
, blk
, num
, &blk
, &num
);
388 fprintf(stderr
, _("\nCould not write %d "
389 "blocks in inode table starting at %u: %s\n"),
390 num
, blk
, error_message(retval
));
394 if (sync_kludge
== 1)
396 else if ((i
% sync_kludge
) == 0)
400 ext2fs_zero_blocks(0, 0, 0, 0, 0);
401 progress_close(&progress
);
404 static void create_root_dir(ext2_filsys fs
)
407 struct ext2_inode inode
;
410 retval
= ext2fs_mkdir(fs
, EXT2_ROOT_INO
, EXT2_ROOT_INO
, 0);
412 com_err("ext2fs_mkdir", retval
, _("while creating root dir"));
416 retval
= ext2fs_read_inode(fs
, EXT2_ROOT_INO
, &inode
);
418 com_err("ext2fs_read_inode", retval
,
419 _("while reading root inode"));
424 ext2fs_set_i_uid_high(inode
, uid
>> 16);
428 ext2fs_set_i_gid_high(inode
, gid
>> 16);
430 retval
= ext2fs_write_new_inode(fs
, EXT2_ROOT_INO
, &inode
);
432 com_err("ext2fs_write_inode", retval
,
433 _("while setting root inode ownership"));
439 static void create_lost_and_found(ext2_filsys fs
)
441 unsigned int lpf_size
= 0;
444 const char *name
= "lost+found";
448 retval
= ext2fs_mkdir(fs
, EXT2_ROOT_INO
, 0, name
);
450 com_err("ext2fs_mkdir", retval
,
451 _("while creating /lost+found"));
455 retval
= ext2fs_lookup(fs
, EXT2_ROOT_INO
, name
, strlen(name
), 0, &ino
);
457 com_err("ext2_lookup", retval
,
458 _("while looking up /lost+found"));
462 for (i
=1; i
< EXT2_NDIR_BLOCKS
; i
++) {
463 /* Ensure that lost+found is at least 2 blocks, so we always
464 * test large empty blocks for big-block filesystems. */
465 if ((lpf_size
+= fs
->blocksize
) >= 16*1024 &&
466 lpf_size
>= 2 * fs
->blocksize
)
468 retval
= ext2fs_expand_dir(fs
, ino
);
470 com_err("ext2fs_expand_dir", retval
,
471 _("while expanding /lost+found"));
477 static void create_bad_block_inode(ext2_filsys fs
, badblocks_list bb_list
)
481 ext2fs_mark_inode_bitmap(fs
->inode_map
, EXT2_BAD_INO
);
482 ext2fs_inode_alloc_stats2(fs
, EXT2_BAD_INO
, +1, 0);
483 retval
= ext2fs_update_bb_inode(fs
, bb_list
);
485 com_err("ext2fs_update_bb_inode", retval
,
486 _("while setting bad block inode"));
492 static void reserve_inodes(ext2_filsys fs
)
496 for (i
= EXT2_ROOT_INO
+ 1; i
< EXT2_FIRST_INODE(fs
->super
); i
++)
497 ext2fs_inode_alloc_stats2(fs
, i
, +1, 0);
498 ext2fs_mark_ib_dirty(fs
);
501 #define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */
502 #define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */
503 #define BSD_LABEL_OFFSET 64
505 static void zap_sector(ext2_filsys fs
, int sect
, int nsect
)
511 buf
= malloc(512*nsect
);
513 printf(_("Out of memory erasing sectors %d-%d\n"),
514 sect
, sect
+ nsect
- 1);
519 /* Check for a BSD disklabel, and don't erase it if so */
520 retval
= io_channel_read_blk(fs
->io
, 0, -512, buf
);
523 _("Warning: could not read block 0: %s\n"),
524 error_message(retval
));
526 magic
= (unsigned int *) (buf
+ BSD_LABEL_OFFSET
);
527 if ((*magic
== BSD_DISKMAGIC
) ||
528 (*magic
== BSD_MAGICDISK
))
533 memset(buf
, 0, 512*nsect
);
534 io_channel_set_blksize(fs
->io
, 512);
535 retval
= io_channel_write_blk(fs
->io
, sect
, -512*nsect
, buf
);
536 io_channel_set_blksize(fs
->io
, fs
->blocksize
);
539 fprintf(stderr
, _("Warning: could not erase sector %d: %s\n"),
540 sect
, error_message(retval
));
543 static void create_journal_dev(ext2_filsys fs
)
545 struct progress_struct progress
;
549 int c
, count
, err_count
;
551 retval
= ext2fs_create_journal_superblock(fs
,
552 fs
->super
->s_blocks_count
, 0, &buf
);
554 com_err("create_journal_dev", retval
,
555 _("while initializing journal superblock"));
559 memset(&progress
, 0, sizeof(progress
));
561 progress_init(&progress
, _("Zeroing journal device: "),
562 fs
->super
->s_blocks_count
);
565 count
= fs
->super
->s_blocks_count
;
571 retval
= ext2fs_zero_blocks(fs
, blk
, c
, &err_blk
, &err_count
);
573 com_err("create_journal_dev", retval
,
574 _("while zeroing journal device "
575 "(block %u, count %d)"),
581 progress_update(&progress
, blk
);
583 ext2fs_zero_blocks(0, 0, 0, 0, 0);
585 retval
= io_channel_write_blk(fs
->io
,
586 fs
->super
->s_first_data_block
+1,
589 com_err("create_journal_dev", retval
,
590 _("while writing journal superblock"));
593 progress_close(&progress
);
596 static void show_stats(ext2_filsys fs
)
598 struct ext2_super_block
*s
= fs
->super
;
605 if (fs_param
.s_blocks_count
!= s
->s_blocks_count
)
606 fprintf(stderr
, _("warning: %u blocks unused.\n\n"),
607 fs_param
.s_blocks_count
- s
->s_blocks_count
);
609 memset(buf
, 0, sizeof(buf
));
610 strncpy(buf
, s
->s_volume_name
, sizeof(s
->s_volume_name
));
611 printf(_("Filesystem label=%s\n"), buf
);
612 fputs(_("OS type: "), stdout
);
613 os
= e2p_os2string(fs
->super
->s_creator_os
);
617 printf(_("Block size=%u (log=%u)\n"), fs
->blocksize
,
618 s
->s_log_block_size
);
619 if (EXT2_HAS_RO_COMPAT_FEATURE(fs
->super
,
620 EXT4_FEATURE_RO_COMPAT_BIGALLOC
))
621 printf(_("Cluster size=%u (log=%u)\n"),
622 fs
->blocksize
<< fs
->cluster_ratio_bits
,
623 s
->s_log_cluster_size
);
625 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s
),
626 s
->s_log_cluster_size
);
627 printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
628 s
->s_raid_stride
, s
->s_raid_stripe_width
);
629 printf(_("%u inodes, %u blocks\n"), s
->s_inodes_count
,
631 printf(_("%u blocks (%2.2f%%) reserved for the super user\n"),
633 100.0 * s
->s_r_blocks_count
/ s
->s_blocks_count
);
634 printf(_("First data block=%u\n"), s
->s_first_data_block
);
635 if (s
->s_reserved_gdt_blocks
)
636 printf(_("Maximum filesystem blocks=%lu\n"),
637 (s
->s_reserved_gdt_blocks
+ fs
->desc_blocks
) *
638 EXT2_DESC_PER_BLOCK(s
) * s
->s_blocks_per_group
);
639 if (fs
->group_desc_count
> 1)
640 printf(_("%u block groups\n"), fs
->group_desc_count
);
642 printf(_("%u block group\n"), fs
->group_desc_count
);
643 if (EXT2_HAS_RO_COMPAT_FEATURE(fs
->super
,
644 EXT4_FEATURE_RO_COMPAT_BIGALLOC
))
645 printf(_("%u blocks per group, %u clusters per group\n"),
646 s
->s_blocks_per_group
, s
->s_clusters_per_group
);
648 printf(_("%u blocks per group, %u fragments per group\n"),
649 s
->s_blocks_per_group
, s
->s_clusters_per_group
);
650 printf(_("%u inodes per group\n"), s
->s_inodes_per_group
);
652 if (fs
->group_desc_count
== 1) {
657 printf(_("Superblock backups stored on blocks: "));
658 group_block
= s
->s_first_data_block
;
660 for (i
= 1; i
< fs
->group_desc_count
; i
++) {
661 group_block
+= s
->s_blocks_per_group
;
662 if (!ext2fs_bg_has_super(fs
, i
))
666 need
= int_log10(group_block
) + 2;
667 if (need
> col_left
) {
672 printf("%u", group_block
);
678 * Set the S_CREATOR_OS field. Return true if OS is known,
681 static int set_os(struct ext2_super_block
*sb
, char *os
)
684 sb
->s_creator_os
= atoi (os
);
685 else if (strcasecmp(os
, "linux") == 0)
686 sb
->s_creator_os
= EXT2_OS_LINUX
;
687 else if (strcasecmp(os
, "GNU") == 0 || strcasecmp(os
, "hurd") == 0)
688 sb
->s_creator_os
= EXT2_OS_HURD
;
689 else if (strcasecmp(os
, "freebsd") == 0)
690 sb
->s_creator_os
= EXT2_OS_FREEBSD
;
691 else if (strcasecmp(os
, "lites") == 0)
692 sb
->s_creator_os
= EXT2_OS_LITES
;
698 #define PATH_SET "PATH=/sbin"
700 static void parse_extended_opts(struct ext2_super_block
*param
,
703 char *buf
, *token
, *next
, *p
, *arg
, *badopt
= 0;
711 _("Couldn't allocate memory to parse options!\n"));
715 for (token
= buf
; token
&& *token
; token
= next
) {
716 p
= strchr(token
, ',');
722 arg
= strchr(token
, '=');
727 if (strcmp(token
, "stride") == 0) {
733 param
->s_raid_stride
= strtoul(arg
, &p
, 0);
734 if (*p
|| (param
->s_raid_stride
== 0)) {
736 _("Invalid stride parameter: %s\n"),
741 } else if (strcmp(token
, "stripe-width") == 0 ||
742 strcmp(token
, "stripe_width") == 0) {
748 param
->s_raid_stripe_width
= strtoul(arg
, &p
, 0);
749 if (*p
|| (param
->s_raid_stripe_width
== 0)) {
751 _("Invalid stripe-width parameter: %s\n"),
756 } else if (!strcmp(token
, "resize")) {
757 unsigned long resize
, bpg
, rsv_groups
;
758 unsigned long group_desc_count
, desc_blocks
;
759 unsigned int gdpb
, blocksize
;
768 resize
= parse_num_blocks(arg
,
769 param
->s_log_block_size
);
773 _("Invalid resize parameter: %s\n"),
778 if (resize
<= param
->s_blocks_count
) {
780 _("The resize maximum must be greater "
781 "than the filesystem size.\n"));
786 blocksize
= EXT2_BLOCK_SIZE(param
);
787 bpg
= param
->s_blocks_per_group
;
790 gdpb
= EXT2_DESC_PER_BLOCK(param
);
792 ext2fs_div_ceil(param
->s_blocks_count
, bpg
);
793 desc_blocks
= (group_desc_count
+
795 rsv_groups
= ext2fs_div_ceil(resize
, bpg
);
796 rsv_gdb
= ext2fs_div_ceil(rsv_groups
, gdpb
) -
798 if (rsv_gdb
> (int) EXT2_ADDR_PER_BLOCK(param
))
799 rsv_gdb
= EXT2_ADDR_PER_BLOCK(param
);
802 if (param
->s_rev_level
== EXT2_GOOD_OLD_REV
) {
804 _("On-line resizing not supported with revision 0 filesystems\n"));
808 param
->s_feature_compat
|=
809 EXT2_FEATURE_COMPAT_RESIZE_INODE
;
811 param
->s_reserved_gdt_blocks
= rsv_gdb
;
813 } else if (!strcmp(token
, "test_fs")) {
814 param
->s_flags
|= EXT2_FLAGS_TEST_FILESYS
;
815 } else if (!strcmp(token
, "lazy_itable_init")) {
817 lazy_itable_init
= strtoul(arg
, &p
, 0);
819 lazy_itable_init
= 1;
820 } else if (!strcmp(token
, "discard")) {
822 } else if (!strcmp(token
, "nodiscard")) {
830 fprintf(stderr
, _("\nBad option(s) specified: %s\n\n"
831 "Extended options are separated by commas, "
832 "and may take an argument which\n"
833 "\tis set off by an equals ('=') sign.\n\n"
834 "Valid extended options are:\n"
835 "\tstride=<RAID per-disk data chunk in blocks>\n"
836 "\tstripe-width=<RAID stride * data disks in blocks>\n"
837 "\tresize=<resize maximum size in blocks>\n"
838 "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
842 badopt
? badopt
: "");
846 if (param
->s_raid_stride
&&
847 (param
->s_raid_stripe_width
% param
->s_raid_stride
) != 0)
848 fprintf(stderr
, _("\nWarning: RAID stripe-width %u not an even "
849 "multiple of stride %u.\n\n"),
850 param
->s_raid_stripe_width
, param
->s_raid_stride
);
855 static __u32 ok_features
[3] = {
857 EXT3_FEATURE_COMPAT_HAS_JOURNAL
|
858 EXT2_FEATURE_COMPAT_RESIZE_INODE
|
859 EXT2_FEATURE_COMPAT_DIR_INDEX
|
860 EXT2_FEATURE_COMPAT_EXT_ATTR
,
862 EXT2_FEATURE_INCOMPAT_FILETYPE
|
863 EXT3_FEATURE_INCOMPAT_EXTENTS
|
864 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV
|
865 EXT2_FEATURE_INCOMPAT_META_BG
|
866 EXT4_FEATURE_INCOMPAT_FLEX_BG
,
868 EXT2_FEATURE_RO_COMPAT_LARGE_FILE
|
869 EXT4_FEATURE_RO_COMPAT_HUGE_FILE
|
870 EXT4_FEATURE_RO_COMPAT_DIR_NLINK
|
871 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE
|
872 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
|
873 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
877 static void syntax_err_report(const char *filename
, long err
, int line_num
)
880 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
881 filename
, line_num
, error_message(err
));
885 static const char *config_fn
[] = { ROOT_SYSCONFDIR
"/mke2fs.conf", 0 };
887 static void edit_feature(const char *str
, __u32
*compat_array
)
892 if (e2p_edit_feature(str
, compat_array
, ok_features
)) {
893 fprintf(stderr
, _("Invalid filesystem option set: %s\n"),
899 static void edit_mntopts(const char *str
, __u32
*mntopts
)
904 if (e2p_edit_mntopts(str
, mntopts
, ~0)) {
905 fprintf(stderr
, _("Invalid mount option set: %s\n"),
917 static errcode_t
init_list(struct str_list
*sl
)
921 sl
->list
= malloc((sl
->max
+1) * sizeof(char *));
928 static errcode_t
push_string(struct str_list
*sl
, const char *str
)
932 if (sl
->num
>= sl
->max
) {
934 new_list
= realloc(sl
->list
, (sl
->max
+1) * sizeof(char *));
939 sl
->list
[sl
->num
] = malloc(strlen(str
)+1);
940 if (sl
->list
[sl
->num
] == 0)
942 strcpy(sl
->list
[sl
->num
], str
);
944 sl
->list
[sl
->num
] = 0;
948 static void print_str_list(char **list
)
952 for (cpp
= list
; *cpp
; cpp
++) {
953 printf("'%s'", *cpp
);
961 * Return TRUE if the profile has the given subsection
963 static int profile_has_subsection(profile_t profile
, const char *section
,
964 const char *subsection
)
967 const char *names
[4];
972 names
[1] = subsection
;
975 if (profile_iterator_create(profile
, names
,
976 PROFILE_ITER_LIST_SECTION
|
977 PROFILE_ITER_RELATIONS_ONLY
, &state
))
980 if ((profile_iterator(&state
, &name
, 0) == 0) && name
) {
985 profile_iterator_free(&state
);
989 static char **parse_fs_type(const char *fs_type
,
990 const char *usage_types
,
991 struct ext2_super_block
*fs_param
,
994 const char *ext_type
= 0;
996 char *profile_type
= 0;
998 const char *size_type
;
999 struct str_list list
;
1003 if (init_list(&list
))
1006 if (creator_os
&& (!strcasecmp(creator_os
, "GNU") ||
1007 !strcasecmp(creator_os
, "hurd")))
1014 else if (!strcmp(program_name
, "mke3fs"))
1016 else if (progname
) {
1017 ext_type
= strrchr(progname
, '/');
1021 ext_type
= progname
;
1023 if (!strncmp(ext_type
, "mkfs.", 5)) {
1025 if (ext_type
[0] == 0)
1032 profile_get_string(profile
, "defaults", "fs_type", 0,
1033 "ext2", &profile_type
);
1034 ext_type
= profile_type
;
1035 if (!strcmp(ext_type
, "ext2") && (journal_size
!= 0))
1040 if (!profile_has_subsection(profile
, "fs_types", ext_type
) &&
1041 strcmp(ext_type
, "ext2")) {
1042 printf(_("\nYour mke2fs.conf file does not define the "
1043 "%s filesystem type.\n"), ext_type
);
1044 if (!strcmp(ext_type
, "ext3") || !strcmp(ext_type
, "ext4") ||
1045 !strcmp(ext_type
, "ext4dev")) {
1046 printf(_("You probably need to install an updated "
1047 "mke2fs.conf file.\n\n"));
1050 printf(_("Aborting...\n"));
1055 meg
= (1024 * 1024) / EXT2_BLOCK_SIZE(fs_param
);
1056 if (fs_param
->s_blocks_count
< 3 * meg
)
1057 size_type
= "floppy";
1058 else if (fs_param
->s_blocks_count
< 512 * meg
)
1059 size_type
= "small";
1061 size_type
= "default";
1064 usage_types
= size_type
;
1066 parse_str
= malloc(usage_types
? strlen(usage_types
)+1 : 1);
1072 strcpy(parse_str
, usage_types
);
1077 push_string(&list
, ext_type
);
1080 t
= strchr(cp
, ',');
1085 if (profile_has_subsection(profile
, "fs_types", cp
))
1086 push_string(&list
, cp
);
1087 else if (strcmp(cp
, "default") != 0)
1089 _("\nWarning: the fs_type %s is not "
1090 "defined in mke2fs.conf\n\n"),
1103 push_string(&list
, "hurd");
1107 static char *get_string_from_profile(char **fs_types
, const char *opt
,
1108 const char *def_val
)
1113 for (i
=0; fs_types
[i
]; i
++);
1114 for (i
-=1; i
>=0 ; i
--) {
1115 profile_get_string(profile
, "fs_types", fs_types
[i
],
1120 profile_get_string(profile
, "defaults", opt
, 0, def_val
, &ret
);
1124 static int get_int_from_profile(char **fs_types
, const char *opt
, int def_val
)
1129 profile_get_integer(profile
, "defaults", opt
, 0, def_val
, &ret
);
1130 for (cpp
= fs_types
; *cpp
; cpp
++)
1131 profile_get_integer(profile
, "fs_types", *cpp
, opt
, ret
, &ret
);
1135 static int get_bool_from_profile(char **fs_types
, const char *opt
, int def_val
)
1140 profile_get_boolean(profile
, "defaults", opt
, 0, def_val
, &ret
);
1141 for (cpp
= fs_types
; *cpp
; cpp
++)
1142 profile_get_boolean(profile
, "fs_types", *cpp
, opt
, ret
, &ret
);
1146 extern const char *mke2fs_default_profile
;
1147 static const char *default_files
[] = { "<default>", 0 };
1149 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1151 * Sets the geometry of a device (stripe/stride), and returns the
1152 * device's alignment offset, if any, or a negative error.
1154 static int get_device_geometry(const char *file
,
1155 struct ext2_super_block
*fs_param
,
1162 unsigned long min_io
;
1163 unsigned long opt_io
;
1164 struct stat statbuf
;
1166 /* Nothing to do for a regular file */
1167 if (!stat(file
, &statbuf
) && S_ISREG(statbuf
.st_mode
))
1170 pr
= blkid_new_probe_from_filename(file
);
1174 tp
= blkid_probe_get_topology(pr
);
1178 min_io
= blkid_topology_get_minimum_io_size(tp
);
1179 opt_io
= blkid_topology_get_optimal_io_size(tp
);
1180 blocksize
= EXT2_BLOCK_SIZE(fs_param
);
1181 if ((min_io
== 0) && (psector_size
> blocksize
))
1182 min_io
= psector_size
;
1183 if ((opt_io
== 0) && min_io
)
1185 if ((opt_io
== 0) && (psector_size
> blocksize
))
1186 opt_io
= psector_size
;
1188 /* setting stripe/stride to blocksize is pointless */
1189 if (min_io
> blocksize
)
1190 fs_param
->s_raid_stride
= min_io
/ blocksize
;
1191 if (opt_io
> blocksize
)
1192 fs_param
->s_raid_stripe_width
= opt_io
/ blocksize
;
1194 rc
= blkid_topology_get_alignment_offset(tp
);
1196 blkid_free_probe(pr
);
1201 static void PRS(int argc
, char *argv
[])
1207 int inode_ratio
= 0;
1209 unsigned long flex_bg_size
= 0;
1210 double reserved_ratio
= 5.0;
1211 int lsector_size
= 0, psector_size
= 0;
1212 int show_version_only
= 0;
1213 unsigned long long num_inodes
= 0; /* unsigned long long to catch too-large input */
1215 char * oldpath
= getenv("PATH");
1216 char * extended_opts
= 0;
1217 const char * fs_type
= 0;
1218 const char * usage_types
= 0;
1224 int s_opt
= -1, r_opt
= -1;
1225 char *fs_features
= 0;
1228 int pathlen
= sizeof(PATH_SET
) + 1;
1231 pathlen
+= strlen(oldpath
);
1232 newpath
= malloc(pathlen
);
1233 strcpy(newpath
, PATH_SET
);
1235 /* Update our PATH to include /sbin */
1237 strcat (newpath
, ":");
1238 strcat (newpath
, oldpath
);
1242 tmp
= getenv("MKE2FS_SYNC");
1244 sync_kludge
= atoi(tmp
);
1246 /* Determine the system page size if possible */
1248 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1249 #define _SC_PAGESIZE _SC_PAGE_SIZE
1252 sysval
= sysconf(_SC_PAGESIZE
);
1254 sys_page_size
= sysval
;
1255 #endif /* _SC_PAGESIZE */
1256 #endif /* HAVE_SYSCONF */
1258 if ((tmp
= getenv("MKE2FS_CONFIG")) != NULL
)
1260 profile_set_syntax_err_cb(syntax_err_report
);
1261 retval
= profile_init(config_fn
, &profile
);
1262 if (retval
== ENOENT
) {
1263 profile_init(default_files
, &profile
);
1264 profile_set_default(profile
, mke2fs_default_profile
);
1267 setbuf(stdout
, NULL
);
1268 setbuf(stderr
, NULL
);
1269 add_error_table(&et_ext2_error_table
);
1270 add_error_table(&et_prof_error_table
);
1271 memset(&fs_param
, 0, sizeof(struct ext2_super_block
));
1272 fs_param
.s_rev_level
= 1; /* Create revision 1 filesystems now */
1279 linux_version_code
= parse_version_number(ut
.release
);
1280 if (linux_version_code
&& linux_version_code
< (2*65536 + 2*256))
1281 fs_param
.s_rev_level
= 0;
1284 if (argc
&& *argv
) {
1285 program_name
= get_progname(*argv
);
1287 /* If called as mkfs.ext3, create a journal inode */
1288 if (!strcmp(program_name
, "mkfs.ext3") ||
1289 !strcmp(program_name
, "mke3fs"))
1293 while ((c
= getopt (argc
, argv
,
1294 "b:cf:g:G:i:jl:m:no:qr:s:t:vE:FI:J:KL:M:N:O:R:ST:U:V")) != EOF
) {
1297 blocksize
= strtol(optarg
, &tmp
, 0);
1298 b
= (blocksize
> 0) ? blocksize
: -blocksize
;
1299 if (b
< EXT2_MIN_BLOCK_SIZE
||
1300 b
> EXT2_MAX_BLOCK_SIZE
|| *tmp
) {
1301 com_err(program_name
, 0,
1302 _("invalid block size - %s"), optarg
);
1305 if (blocksize
> 4096)
1306 fprintf(stderr
, _("Warning: blocksize %d not "
1307 "usable on most systems.\n"),
1310 fs_param
.s_log_block_size
=
1311 int_log2(blocksize
>>
1312 EXT2_MIN_BLOCK_LOG_SIZE
);
1314 case 'c': /* Check for bad blocks */
1318 size
= strtoul(optarg
, &tmp
, 0);
1319 if (size
< EXT2_MIN_BLOCK_SIZE
||
1320 size
> EXT2_MAX_BLOCK_SIZE
|| *tmp
) {
1321 com_err(program_name
, 0,
1322 _("invalid fragment size - %s"),
1326 fprintf(stderr
, _("Warning: fragments not supported. "
1327 "Ignoring -f option\n"));
1330 fs_param
.s_blocks_per_group
= strtoul(optarg
, &tmp
, 0);
1332 com_err(program_name
, 0,
1333 _("Illegal number for blocks per group"));
1336 if ((fs_param
.s_blocks_per_group
% 8) != 0) {
1337 com_err(program_name
, 0,
1338 _("blocks per group must be multiple of 8"));
1343 flex_bg_size
= strtoul(optarg
, &tmp
, 0);
1345 com_err(program_name
, 0,
1346 _("Illegal number for flex_bg size"));
1349 if (flex_bg_size
< 1 ||
1350 (flex_bg_size
& (flex_bg_size
-1)) != 0) {
1351 com_err(program_name
, 0,
1352 _("flex_bg size must be a power of 2"));
1357 inode_ratio
= strtoul(optarg
, &tmp
, 0);
1358 if (inode_ratio
< EXT2_MIN_BLOCK_SIZE
||
1359 inode_ratio
> EXT2_MAX_BLOCK_SIZE
* 1024 ||
1361 com_err(program_name
, 0,
1362 _("invalid inode ratio %s (min %d/max %d)"),
1363 optarg
, EXT2_MIN_BLOCK_SIZE
,
1364 EXT2_MAX_BLOCK_SIZE
* 1024);
1369 parse_journal_opts(optarg
);
1372 fprintf(stderr
, _("Warning: -K option is deprecated and "
1373 "should not be used anymore. Use "
1374 "\'-E nodiscard\' extended option "
1383 bad_blocks_filename
= malloc(strlen(optarg
)+1);
1384 if (!bad_blocks_filename
) {
1385 com_err(program_name
, ENOMEM
,
1386 _("in malloc for bad_blocks_filename"));
1389 strcpy(bad_blocks_filename
, optarg
);
1392 reserved_ratio
= strtod(optarg
, &tmp
);
1393 if ( *tmp
|| reserved_ratio
> 50 ||
1394 reserved_ratio
< 0) {
1395 com_err(program_name
, 0,
1396 _("invalid reserved blocks percent - %s"),
1405 creator_os
= optarg
;
1411 r_opt
= strtoul(optarg
, &tmp
, 0);
1413 com_err(program_name
, 0,
1414 _("bad revision level - %s"), optarg
);
1417 fs_param
.s_rev_level
= r_opt
;
1419 case 's': /* deprecated */
1420 s_opt
= atoi(optarg
);
1423 inode_size
= strtoul(optarg
, &tmp
, 0);
1425 com_err(program_name
, 0,
1426 _("invalid inode size - %s"), optarg
);
1437 volume_label
= optarg
;
1443 num_inodes
= strtoul(optarg
, &tmp
, 0);
1445 com_err(program_name
, 0,
1446 _("bad num inodes - %s"), optarg
);
1451 fs_features
= optarg
;
1455 extended_opts
= optarg
;
1464 usage_types
= optarg
;
1470 /* Print version number and exit */
1471 show_version_only
++;
1477 if ((optind
== argc
) && !show_version_only
)
1479 device_name
= argv
[optind
++];
1481 if (!quiet
|| show_version_only
)
1482 fprintf (stderr
, "mke2fs %s (%s)\n", E2FSPROGS_VERSION
,
1485 if (show_version_only
) {
1486 fprintf(stderr
, _("\tUsing %s\n"),
1487 error_message(EXT2_ET_BASE
));
1492 * If there's no blocksize specified and there is a journal
1493 * device, use it to figure out the blocksize
1495 if (blocksize
<= 0 && journal_device
) {
1499 #ifdef CONFIG_TESTIO_DEBUG
1500 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1501 io_ptr
= test_io_manager
;
1502 test_io_backing_manager
= unix_io_manager
;
1505 io_ptr
= unix_io_manager
;
1506 retval
= ext2fs_open(journal_device
,
1507 EXT2_FLAG_JOURNAL_DEV_OK
, 0,
1510 com_err(program_name
, retval
,
1511 _("while trying to open journal device %s\n"),
1515 if ((blocksize
< 0) && (jfs
->blocksize
< (unsigned) (-blocksize
))) {
1516 com_err(program_name
, 0,
1517 _("Journal dev blocksize (%d) smaller than "
1518 "minimum blocksize %d\n"), jfs
->blocksize
,
1522 blocksize
= jfs
->blocksize
;
1523 printf(_("Using journal device's blocksize: %d\n"), blocksize
);
1524 fs_param
.s_log_block_size
=
1525 int_log2(blocksize
>> EXT2_MIN_BLOCK_LOG_SIZE
);
1529 if (blocksize
> sys_page_size
) {
1531 com_err(program_name
, 0,
1532 _("%d-byte blocks too big for system (max %d)"),
1533 blocksize
, sys_page_size
);
1536 fprintf(stderr
, _("Warning: %d-byte blocks too big for system "
1537 "(max %d), forced to continue\n"),
1538 blocksize
, sys_page_size
);
1540 if (optind
< argc
) {
1541 fs_param
.s_blocks_count
= parse_num_blocks(argv
[optind
++],
1542 fs_param
.s_log_block_size
);
1543 if (!fs_param
.s_blocks_count
) {
1544 com_err(program_name
, 0,
1545 _("invalid blocks count '%s' on device '%s'"),
1546 argv
[optind
- 1], device_name
);
1554 check_plausibility(device_name
);
1555 check_mount(device_name
, force
, _("filesystem"));
1557 fs_param
.s_log_cluster_size
= fs_param
.s_log_block_size
;
1559 if (noaction
&& fs_param
.s_blocks_count
) {
1560 dev_size
= fs_param
.s_blocks_count
;
1564 retval
= ext2fs_get_device_size(device_name
,
1565 EXT2_BLOCK_SIZE(&fs_param
),
1567 if ((retval
== EFBIG
) &&
1569 (fs_param
.s_log_block_size
== 0)) {
1570 fs_param
.s_log_block_size
= 2;
1576 if (retval
== EFBIG
) {
1577 blk64_t big_dev_size
;
1579 if (blocksize
< 4096) {
1580 fs_param
.s_log_block_size
= 2;
1583 retval
= ext2fs_get_device_size2(device_name
,
1584 EXT2_BLOCK_SIZE(&fs_param
), &big_dev_size
);
1586 goto get_size_failure
;
1587 if (big_dev_size
== (1ULL << 32)) {
1588 dev_size
= (blk_t
) (big_dev_size
- 1);
1591 fprintf(stderr
, _("%s: Size of device %s too big "
1592 "to be expressed in 32 bits\n\t"
1593 "using a blocksize of %d.\n"),
1594 program_name
, device_name
, EXT2_BLOCK_SIZE(&fs_param
));
1598 if (retval
&& (retval
!= EXT2_ET_UNIMPLEMENTED
)) {
1599 com_err(program_name
, retval
,
1600 _("while trying to determine filesystem size"));
1604 if (!fs_param
.s_blocks_count
) {
1605 if (retval
== EXT2_ET_UNIMPLEMENTED
) {
1606 com_err(program_name
, 0,
1607 _("Couldn't determine device size; you "
1608 "must specify\nthe size of the "
1612 if (dev_size
== 0) {
1613 com_err(program_name
, 0,
1614 _("Device size reported to be zero. "
1615 "Invalid partition specified, or\n\t"
1616 "partition table wasn't reread "
1617 "after running fdisk, due to\n\t"
1618 "a modified partition being busy "
1619 "and in use. You may need to reboot\n\t"
1620 "to re-read your partition table.\n"
1624 fs_param
.s_blocks_count
= dev_size
;
1625 if (sys_page_size
> EXT2_BLOCK_SIZE(&fs_param
))
1626 fs_param
.s_blocks_count
&= ~((sys_page_size
/
1627 EXT2_BLOCK_SIZE(&fs_param
))-1);
1630 } else if (!force
&& (fs_param
.s_blocks_count
> dev_size
)) {
1631 com_err(program_name
, 0,
1632 _("Filesystem larger than apparent device size."));
1636 fs_types
= parse_fs_type(fs_type
, usage_types
, &fs_param
, argv
[0]);
1638 fprintf(stderr
, _("Failed to parse fs types list\n"));
1642 /* Figure out what features should be enabled */
1645 if (fs_param
.s_rev_level
!= EXT2_GOOD_OLD_REV
) {
1646 tmp
= get_string_from_profile(fs_types
, "base_features",
1647 "sparse_super,filetype,resize_inode,dir_index");
1648 edit_feature(tmp
, &fs_param
.s_feature_compat
);
1651 /* And which mount options as well */
1652 tmp
= get_string_from_profile(fs_types
, "default_mntopts",
1654 edit_mntopts(tmp
, &fs_param
.s_default_mount_opts
);
1658 for (cpp
= fs_types
; *cpp
; cpp
++) {
1660 profile_get_string(profile
, "fs_types", *cpp
,
1661 "features", "", &tmp
);
1663 edit_feature(tmp
, &fs_param
.s_feature_compat
);
1666 tmp
= get_string_from_profile(fs_types
, "default_features",
1669 edit_feature(fs_features
? fs_features
: tmp
,
1670 &fs_param
.s_feature_compat
);
1673 if (fs_param
.s_feature_incompat
& EXT3_FEATURE_INCOMPAT_JOURNAL_DEV
) {
1674 fs_types
[0] = strdup("journal");
1679 fputs(_("fs_types for mke2fs.conf resolution: "), stdout
);
1680 print_str_list(fs_types
);
1683 if (r_opt
== EXT2_GOOD_OLD_REV
&&
1684 (fs_param
.s_feature_compat
|| fs_param
.s_feature_incompat
||
1685 fs_param
.s_feature_ro_compat
)) {
1686 fprintf(stderr
, _("Filesystem features not supported "
1687 "with revision 0 filesystems\n"));
1692 if (r_opt
== EXT2_GOOD_OLD_REV
) {
1693 fprintf(stderr
, _("Sparse superblocks not supported "
1694 "with revision 0 filesystems\n"));
1697 fs_param
.s_feature_ro_compat
|=
1698 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
;
1699 } else if (s_opt
== 0)
1700 fs_param
.s_feature_ro_compat
&=
1701 ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
;
1703 if (journal_size
!= 0) {
1704 if (r_opt
== EXT2_GOOD_OLD_REV
) {
1705 fprintf(stderr
, _("Journals not supported "
1706 "with revision 0 filesystems\n"));
1709 fs_param
.s_feature_compat
|=
1710 EXT3_FEATURE_COMPAT_HAS_JOURNAL
;
1713 if (fs_param
.s_feature_incompat
&
1714 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV
) {
1716 fs_param
.s_feature_incompat
= EXT3_FEATURE_INCOMPAT_JOURNAL_DEV
;
1717 fs_param
.s_feature_compat
= 0;
1718 fs_param
.s_feature_ro_compat
= 0;
1721 if ((fs_param
.s_feature_incompat
& EXT2_FEATURE_INCOMPAT_META_BG
) &&
1722 (fs_param
.s_feature_compat
& EXT2_FEATURE_COMPAT_RESIZE_INODE
)) {
1723 fprintf(stderr
, _("The resize_inode and meta_bg features "
1724 "are not compatible.\n"
1725 "They can not be both enabled "
1726 "simultaneously.\n"));
1730 /* Set first meta blockgroup via an environment variable */
1731 /* (this is mostly for debugging purposes) */
1732 if ((fs_param
.s_feature_incompat
& EXT2_FEATURE_INCOMPAT_META_BG
) &&
1733 ((tmp
= getenv("MKE2FS_FIRST_META_BG"))))
1734 fs_param
.s_first_meta_bg
= atoi(tmp
);
1736 /* Get the hardware sector sizes, if available */
1737 retval
= ext2fs_get_device_sectsize(device_name
, &lsector_size
);
1739 com_err(program_name
, retval
,
1740 _("while trying to determine hardware sector size"));
1743 retval
= ext2fs_get_device_phys_sectsize(device_name
, &psector_size
);
1745 com_err(program_name
, retval
,
1746 _("while trying to determine physical sector size"));
1750 if ((tmp
= getenv("MKE2FS_DEVICE_SECTSIZE")) != NULL
)
1751 lsector_size
= atoi(tmp
);
1752 if ((tmp
= getenv("MKE2FS_DEVICE_PHYS_SECTSIZE")) != NULL
)
1753 psector_size
= atoi(tmp
);
1755 /* Older kernels may not have physical/logical distinction */
1757 psector_size
= lsector_size
;
1759 if (blocksize
<= 0) {
1760 use_bsize
= get_int_from_profile(fs_types
, "blocksize", 4096);
1762 if (use_bsize
== -1) {
1763 use_bsize
= sys_page_size
;
1764 if ((linux_version_code
< (2*65536 + 6*256)) &&
1768 if (lsector_size
&& use_bsize
< lsector_size
)
1769 use_bsize
= lsector_size
;
1770 if ((blocksize
< 0) && (use_bsize
< (-blocksize
)))
1771 use_bsize
= -blocksize
;
1772 blocksize
= use_bsize
;
1773 fs_param
.s_blocks_count
/= blocksize
/ 1024;
1775 if (blocksize
< lsector_size
) { /* Impossible */
1776 com_err(program_name
, EINVAL
,
1777 _("while setting blocksize; too small "
1780 } else if ((blocksize
< psector_size
) &&
1781 (psector_size
<= sys_page_size
)) { /* Suboptimal */
1782 fprintf(stderr
, _("Warning: specified blocksize %d is "
1783 "less than device physical sectorsize %d\n"),
1784 blocksize
, psector_size
);
1788 if (inode_ratio
== 0) {
1789 inode_ratio
= get_int_from_profile(fs_types
, "inode_ratio",
1791 if (inode_ratio
< blocksize
)
1792 inode_ratio
= blocksize
;
1795 fs_param
.s_log_cluster_size
= fs_param
.s_log_block_size
=
1796 int_log2(blocksize
>> EXT2_MIN_BLOCK_LOG_SIZE
);
1798 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1799 retval
= get_device_geometry(device_name
, &fs_param
, psector_size
);
1802 _("warning: Unable to get device geometry for %s\n"),
1804 } else if (retval
) {
1805 printf(_("%s alignment is offset by %lu bytes.\n"),
1806 device_name
, retval
);
1807 printf(_("This may result in very poor performance, "
1808 "(re)-partitioning suggested.\n"));
1812 blocksize
= EXT2_BLOCK_SIZE(&fs_param
);
1814 lazy_itable_init
= 0;
1815 if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK
) == 0)
1816 lazy_itable_init
= 1;
1818 lazy_itable_init
= get_bool_from_profile(fs_types
,
1821 discard
= get_bool_from_profile(fs_types
, "discard" , discard
);
1823 /* Get options from profile */
1824 for (cpp
= fs_types
; *cpp
; cpp
++) {
1826 profile_get_string(profile
, "fs_types", *cpp
, "options", "", &tmp
);
1828 parse_extended_opts(&fs_param
, tmp
);
1833 parse_extended_opts(&fs_param
, extended_opts
);
1835 /* Since sparse_super is the default, we would only have a problem
1836 * here if it was explicitly disabled.
1838 if ((fs_param
.s_feature_compat
& EXT2_FEATURE_COMPAT_RESIZE_INODE
) &&
1839 !(fs_param
.s_feature_ro_compat
&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
)) {
1840 com_err(program_name
, 0,
1841 _("reserved online resize blocks not supported "
1842 "on non-sparse filesystem"));
1846 if (fs_param
.s_blocks_per_group
) {
1847 if (fs_param
.s_blocks_per_group
< 256 ||
1848 fs_param
.s_blocks_per_group
> 8 * (unsigned) blocksize
) {
1849 com_err(program_name
, 0,
1850 _("blocks per group count out of range"));
1855 if (inode_size
== 0)
1856 inode_size
= get_int_from_profile(fs_types
, "inode_size", 0);
1857 if (!flex_bg_size
&& (fs_param
.s_feature_incompat
&
1858 EXT4_FEATURE_INCOMPAT_FLEX_BG
))
1859 flex_bg_size
= get_int_from_profile(fs_types
,
1860 "flex_bg_size", 16);
1862 if (!(fs_param
.s_feature_incompat
&
1863 EXT4_FEATURE_INCOMPAT_FLEX_BG
)) {
1864 com_err(program_name
, 0,
1865 _("Flex_bg feature not enabled, so "
1866 "flex_bg size may not be specified"));
1869 fs_param
.s_log_groups_per_flex
= int_log2(flex_bg_size
);
1872 if (inode_size
&& fs_param
.s_rev_level
>= EXT2_DYNAMIC_REV
) {
1873 if (inode_size
< EXT2_GOOD_OLD_INODE_SIZE
||
1874 inode_size
> EXT2_BLOCK_SIZE(&fs_param
) ||
1875 inode_size
& (inode_size
- 1)) {
1876 com_err(program_name
, 0,
1877 _("invalid inode size %d (min %d/max %d)"),
1878 inode_size
, EXT2_GOOD_OLD_INODE_SIZE
,
1882 fs_param
.s_inode_size
= inode_size
;
1885 /* Make sure number of inodes specified will fit in 32 bits */
1886 if (num_inodes
== 0) {
1887 unsigned long long n
;
1888 n
= (unsigned long long) fs_param
.s_blocks_count
* blocksize
/ inode_ratio
;
1890 com_err(program_name
, 0,
1891 _("too many inodes (%llu), raise inode ratio?"), n
);
1894 } else if (num_inodes
> ~0U) {
1895 com_err(program_name
, 0,
1896 _("too many inodes (%llu), specify < 2^32 inodes"),
1901 * Calculate number of inodes based on the inode ratio
1903 fs_param
.s_inodes_count
= num_inodes
? num_inodes
:
1904 ((__u64
) fs_param
.s_blocks_count
* blocksize
)
1907 if ((((long long)fs_param
.s_inodes_count
) *
1908 (inode_size
? inode_size
: EXT2_GOOD_OLD_INODE_SIZE
)) >=
1909 (((long long)fs_param
.s_blocks_count
) *
1910 EXT2_BLOCK_SIZE(&fs_param
))) {
1911 com_err(program_name
, 0, _("inode_size (%u) * inodes_count "
1912 "(%u) too big for a\n\t"
1913 "filesystem with %lu blocks, "
1914 "specify higher inode_ratio (-i)\n\t"
1915 "or lower inode count (-N).\n"),
1916 inode_size
? inode_size
: EXT2_GOOD_OLD_INODE_SIZE
,
1917 fs_param
.s_inodes_count
,
1918 (unsigned long) fs_param
.s_blocks_count
);
1923 * Calculate number of blocks to reserve
1925 fs_param
.s_r_blocks_count
= (unsigned int) (reserved_ratio
*
1926 fs_param
.s_blocks_count
/ 100.0);
1929 static int should_do_undo(const char *name
)
1934 struct ext2_super_block super
;
1935 io_manager manager
= unix_io_manager
;
1936 int csum_flag
, force_undo
;
1938 csum_flag
= EXT2_HAS_RO_COMPAT_FEATURE(&fs_param
,
1939 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
);
1940 force_undo
= get_int_from_profile(fs_types
, "force_undo", 0);
1941 if (!force_undo
&& (!csum_flag
|| !lazy_itable_init
))
1944 retval
= manager
->open(name
, IO_FLAG_EXCLUSIVE
, &channel
);
1947 * We don't handle error cases instead we
1948 * declare that the file system doesn't exist
1949 * and let the rest of mke2fs take care of
1956 io_channel_set_blksize(channel
, SUPERBLOCK_OFFSET
);
1957 retval
= io_channel_read_blk(channel
, 1, -SUPERBLOCK_SIZE
, &super
);
1963 #if defined(WORDS_BIGENDIAN)
1964 s_magic
= ext2fs_swab16(super
.s_magic
);
1966 s_magic
= super
.s_magic
;
1969 if (s_magic
== EXT2_SUPER_MAGIC
)
1973 io_channel_close(channel
);
1980 static int mke2fs_setup_tdb(const char *name
, io_manager
*io_ptr
)
1982 errcode_t retval
= 0;
1983 char *tdb_dir
, *tdb_file
;
1984 char *device_name
, *tmp_name
;
1987 * Configuration via a conf file would be
1990 tdb_dir
= getenv("E2FSPROGS_UNDO_DIR");
1992 profile_get_string(profile
, "defaults",
1993 "undo_dir", 0, "/var/lib/e2fsprogs",
1996 if (!strcmp(tdb_dir
, "none") || (tdb_dir
[0] == 0) ||
1997 access(tdb_dir
, W_OK
))
2000 tmp_name
= strdup(name
);
2003 com_err(program_name
, ENOMEM
,
2004 _("Couldn't allocate memory for tdb filename\n"));
2007 device_name
= basename(tmp_name
);
2008 tdb_file
= malloc(strlen(tdb_dir
) + 8 + strlen(device_name
) + 7 + 1);
2011 sprintf(tdb_file
, "%s/mke2fs-%s.e2undo", tdb_dir
, device_name
);
2013 if (!access(tdb_file
, F_OK
)) {
2014 if (unlink(tdb_file
) < 0) {
2016 com_err(program_name
, retval
,
2017 _("while trying to delete %s"),
2024 set_undo_io_backing_manager(*io_ptr
);
2025 *io_ptr
= undo_io_manager
;
2026 set_undo_io_backup_file(tdb_file
);
2027 printf(_("Overwriting existing filesystem; this can be undone "
2028 "using the command:\n"
2029 " e2undo %s %s\n\n"), tdb_file
, name
);
2039 #define BLKDISCARD _IO(0x12,119)
2042 #ifndef BLKDISCARDZEROES
2043 #define BLKDISCARDZEROES _IO(0x12,124)
2047 * Return zero if the discard succeeds, and -1 if the discard fails.
2049 static int mke2fs_discard_blocks(ext2_filsys fs
)
2055 __uint64_t range
[2];
2057 blocks
= fs
->super
->s_blocks_count
;
2058 blocksize
= EXT2_BLOCK_SIZE(fs
->super
);
2060 range
[1] = blocks
* blocksize
;
2062 fd
= open64(fs
->device_name
, O_RDWR
);
2065 ret
= ioctl(fd
, BLKDISCARD
, &range
);
2067 printf(_("Calling BLKDISCARD from %llu to %llu "),
2068 (unsigned long long) range
[0],
2069 (unsigned long long) range
[1]);
2071 printf(_("failed.\n"));
2073 printf(_("succeeded.\n"));
2080 static int mke2fs_discard_zeroes_data(ext2_filsys fs
)
2084 int discard_zeroes_data
= 0;
2086 fd
= open64(fs
->device_name
, O_RDWR
);
2089 ioctl(fd
, BLKDISCARDZEROES
, &discard_zeroes_data
);
2092 return discard_zeroes_data
;
2095 #define mke2fs_discard_blocks(fs) 1
2096 #define mke2fs_discard_zeroes_data(fs) 0
2099 int main (int argc
, char *argv
[])
2101 errcode_t retval
= 0;
2103 badblocks_list bb_list
= 0;
2104 unsigned int journal_blocks
;
2108 char tdb_string
[40];
2110 int itable_zeroed
= 0;
2113 setlocale(LC_MESSAGES
, "");
2114 setlocale(LC_CTYPE
, "");
2115 bindtextdomain(NLS_CAT_NAME
, LOCALEDIR
);
2116 textdomain(NLS_CAT_NAME
);
2120 #ifdef CONFIG_TESTIO_DEBUG
2121 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2122 io_ptr
= test_io_manager
;
2123 test_io_backing_manager
= unix_io_manager
;
2126 io_ptr
= unix_io_manager
;
2128 if (should_do_undo(device_name
)) {
2129 retval
= mke2fs_setup_tdb(device_name
, &io_ptr
);
2135 * Initialize the superblock....
2137 retval
= ext2fs_initialize(device_name
, EXT2_FLAG_EXCLUSIVE
, &fs_param
,
2140 com_err(device_name
, retval
, _("while setting up superblock"));
2144 /* Can't undo discard ... */
2145 if (discard
&& (io_ptr
!= undo_io_manager
)) {
2146 retval
= mke2fs_discard_blocks(fs
);
2148 if (!retval
&& mke2fs_discard_zeroes_data(fs
)) {
2150 printf(_("Discard succeeded and will return 0s "
2151 " - skipping inode table wipe\n"));
2152 lazy_itable_init
= 1;
2157 sprintf(tdb_string
, "tdb_data_size=%d", fs
->blocksize
<= 4096 ?
2158 32768 : fs
->blocksize
* 8);
2159 io_channel_set_options(fs
->io
, tdb_string
);
2161 if (fs_param
.s_flags
& EXT2_FLAGS_TEST_FILESYS
)
2162 fs
->super
->s_flags
|= EXT2_FLAGS_TEST_FILESYS
;
2164 if ((fs_param
.s_feature_incompat
&
2165 (EXT3_FEATURE_INCOMPAT_EXTENTS
|EXT4_FEATURE_INCOMPAT_FLEX_BG
)) ||
2166 (fs_param
.s_feature_ro_compat
&
2167 (EXT4_FEATURE_RO_COMPAT_HUGE_FILE
|EXT4_FEATURE_RO_COMPAT_GDT_CSUM
|
2168 EXT4_FEATURE_RO_COMPAT_DIR_NLINK
|
2169 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE
)))
2170 fs
->super
->s_kbytes_written
= 1;
2173 * Wipe out the old on-disk superblock
2176 zap_sector(fs
, 2, 6);
2179 * Parse or generate a UUID for the filesystem
2182 if (uuid_parse(fs_uuid
, fs
->super
->s_uuid
) !=0) {
2183 com_err(device_name
, 0, "could not parse UUID: %s\n",
2188 uuid_generate(fs
->super
->s_uuid
);
2191 * Initialize the directory index variables
2193 hash_alg_str
= get_string_from_profile(fs_types
, "hash_alg",
2195 hash_alg
= e2p_string2hash(hash_alg_str
);
2197 fs
->super
->s_def_hash_version
= (hash_alg
>= 0) ? hash_alg
:
2199 uuid_generate((unsigned char *) fs
->super
->s_hash_seed
);
2202 * Periodic checks can be enabled/disabled via config file.
2203 * Note we override the kernel include file's idea of what the default
2204 * check interval (never) should be. It's a good idea to check at
2205 * least *occasionally*, specially since servers will never rarely get
2206 * to reboot, since Linux is so robust these days. :-)
2208 * 180 days (six months) seems like a good value.
2210 #ifdef EXT2_DFL_CHECKINTERVAL
2211 #undef EXT2_DFL_CHECKINTERVAL
2213 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
2215 if (get_bool_from_profile(fs_types
, "enable_periodic_fsck", 0)) {
2216 fs
->super
->s_checkinterval
= EXT2_DFL_CHECKINTERVAL
;
2217 fs
->super
->s_max_mnt_count
= EXT2_DFL_MAX_MNT_COUNT
;
2219 * Add "jitter" to the superblock's check interval so that we
2220 * don't check all the filesystems at the same time. We use a
2221 * kludgy hack of using the UUID to derive a random jitter value
2223 for (i
= 0, val
= 0 ; i
< sizeof(fs
->super
->s_uuid
); i
++)
2224 val
+= fs
->super
->s_uuid
[i
];
2225 fs
->super
->s_max_mnt_count
+= val
% EXT2_DFL_MAX_MNT_COUNT
;
2229 * Override the creator OS, if applicable
2231 if (creator_os
&& !set_os(fs
->super
, creator_os
)) {
2232 com_err (program_name
, 0, _("unknown os - %s"), creator_os
);
2237 * For the Hurd, we will turn off filetype since it doesn't
2240 if (fs
->super
->s_creator_os
== EXT2_OS_HURD
)
2241 fs
->super
->s_feature_incompat
&=
2242 ~EXT2_FEATURE_INCOMPAT_FILETYPE
;
2245 * Set the volume label...
2248 memset(fs
->super
->s_volume_name
, 0,
2249 sizeof(fs
->super
->s_volume_name
));
2250 strncpy(fs
->super
->s_volume_name
, volume_label
,
2251 sizeof(fs
->super
->s_volume_name
));
2255 * Set the last mount directory
2258 memset(fs
->super
->s_last_mounted
, 0,
2259 sizeof(fs
->super
->s_last_mounted
));
2260 strncpy(fs
->super
->s_last_mounted
, mount_dir
,
2261 sizeof(fs
->super
->s_last_mounted
));
2264 if (!quiet
|| noaction
)
2270 if (fs
->super
->s_feature_incompat
&
2271 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV
) {
2272 create_journal_dev(fs
);
2273 exit(ext2fs_close(fs
) ? 1 : 0);
2276 if (bad_blocks_filename
)
2277 read_bb_file(fs
, &bb_list
, bad_blocks_filename
);
2279 test_disk(fs
, &bb_list
);
2281 handle_bad_blocks(fs
, bb_list
);
2282 fs
->stride
= fs_stride
= fs
->super
->s_raid_stride
;
2283 retval
= ext2fs_allocate_tables(fs
);
2285 com_err(program_name
, retval
,
2286 _("while trying to allocate filesystem tables"));
2290 fs
->super
->s_state
|= EXT2_ERROR_FS
;
2291 fs
->flags
&= ~(EXT2_FLAG_IB_DIRTY
|EXT2_FLAG_BB_DIRTY
);
2293 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
2294 unsigned int rsv
= 65536 / fs
->blocksize
;
2295 unsigned long blocks
= fs
->super
->s_blocks_count
;
2296 unsigned long start
;
2299 #ifdef ZAP_BOOTBLOCK
2300 zap_sector(fs
, 0, 2);
2304 * Wipe out any old MD RAID (or other) metadata at the end
2305 * of the device. This will also verify that the device is
2306 * as large as we think. Be careful with very small devices.
2308 start
= (blocks
& ~(rsv
- 1));
2312 retval
= ext2fs_zero_blocks(fs
, start
, blocks
- start
,
2316 com_err(program_name
, retval
,
2317 _("while zeroing block %u at end of filesystem"),
2320 write_inode_tables(fs
, lazy_itable_init
, itable_zeroed
);
2321 create_root_dir(fs
);
2322 create_lost_and_found(fs
);
2324 create_bad_block_inode(fs
, bb_list
);
2325 if (fs
->super
->s_feature_compat
&
2326 EXT2_FEATURE_COMPAT_RESIZE_INODE
) {
2327 retval
= ext2fs_create_resize_inode(fs
);
2329 com_err("ext2fs_create_resize_inode", retval
,
2330 _("while reserving blocks for online resize"));
2336 if (journal_device
) {
2340 check_plausibility(journal_device
);
2341 check_mount(journal_device
, force
, _("journal"));
2343 retval
= ext2fs_open(journal_device
, EXT2_FLAG_RW
|
2344 EXT2_FLAG_JOURNAL_DEV_OK
, 0,
2345 fs
->blocksize
, unix_io_manager
, &jfs
);
2347 com_err(program_name
, retval
,
2348 _("while trying to open journal device %s\n"),
2353 printf(_("Adding journal to device %s: "),
2357 retval
= ext2fs_add_journal_device(fs
, jfs
);
2359 com_err (program_name
, retval
,
2360 _("\n\twhile trying to add journal to device %s"),
2365 printf(_("done\n"));
2367 free(journal_device
);
2368 } else if ((journal_size
) ||
2369 (fs_param
.s_feature_compat
&
2370 EXT3_FEATURE_COMPAT_HAS_JOURNAL
)) {
2371 journal_blocks
= figure_journal_size(journal_size
, fs
);
2374 printf(_("Skipping journal creation in super-only mode\n"));
2375 fs
->super
->s_journal_inum
= EXT2_JOURNAL_INO
;
2379 if (!journal_blocks
) {
2380 fs
->super
->s_feature_compat
&=
2381 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL
;
2385 printf(_("Creating journal (%u blocks): "),
2389 retval
= ext2fs_add_journal_inode(fs
, journal_blocks
,
2392 com_err (program_name
, retval
,
2393 _("\n\twhile trying to create journal"));
2397 printf(_("done\n"));
2402 printf(_("Writing superblocks and "
2403 "filesystem accounting information: "));
2404 retval
= ext2fs_flush(fs
);
2407 _("\nWarning, had trouble writing out superblocks."));
2410 printf(_("done\n\n"));
2411 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
2412 print_check_message(fs
);
2414 val
= ext2fs_close(fs
);
2415 remove_error_table(&et_ext2_error_table
);
2416 remove_error_table(&et_prof_error_table
);
2417 profile_release(profile
);
2418 for (i
=0; fs_types
[i
]; i
++)
2421 return (retval
|| val
) ? 1 : 0;